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Please I am currently having problem developing a UMAT for transformation-induced swelling material behavior.

I need help.

ABBA 

Hello everyone. I am new to Abaqus and was wondering how to create a model of a heat sink mounted on a heated silicon dioxide substrate. The substrate is on the left side and is a rectangle with a height of 40 mm and width of 5 mm. The heat sink is connected to the right of that with a parrellelogram shape, left side height of 40 mm (adjacent to the substrate), and right side parallel with a height of 5 mm. If anyone can help it is greatly appreciated. When I try modeling it, during section assignments it will not allow me to assign any sections. I have attached a picture of the model.

Post-Doc Position: Multiscale Simulations of Pattern Formation in Mixed Crystals

I can't pipe down about this new Tech Brief!

Hi,

Pleas ask me,what are the main disadvantages of lagrange multipliers method in meshless methods?

" Damage Detection in Bridges using a Mathematical Model by an Updating Method "

Mohammed Lamine MOUSSAOUI , Mohamed CHABAAT , Abderrahmane KIBBOUA

The 9th International Conference on Fracture and Strength of Solids, FEOFS 2013, June 2013, Jeju, South Korea

Status: Accepted

Dear everybody，

I have just studied Abaqus and would like to use Vumat to simulate the hot ductile

fracture criterion of Freudenthal which have the equation: D=integral(0-fracture strain)

of (Smises stress)*d(strain). The fracture will be appear when I reach 1 unit.

Could you please show me how to write algorithm adding temperature to calculate (D) and

out put (D) in Vumat.

thanks you so much

I am looking forward to hearing from you

hongfengtl    

Hi,

Is that possible to define an INTERIOR surface in Abaqus???